Rotary pump.



A. WAHLE.

ROTARY PUMP.

APPLICATION FILED NOV- 6. I915- 1,228,26'?. Patented May 29,1917.

2 SHEETS-SHEET I.

o Wal/Lk (kW j l N 2 Z dental t A. WAHLE.

,ROTARY'PUMP. APPLICATION PM!) Nov. 6, 1915.

Patented May 29,

2 SHEETS-SHEET 2- ADO-LEE WAHLE, F DAVENPORT, IOWA.

ROTARY PUMP.

masses.

Specification of Letters Patent.

Patented May 29. 1911*? Application filed November 6, 1915. Serial No. 59,905.

To. all whom it may concern:

Be it known that I, ADoLPH WAHLE, a c tizen of the United States, residing at Davenport, in the county of Scott and State of Iowa, have invented new and useful Improvements in- Rotary Pumps, of which the following is a full, clear, and exact description.

My invention relates to rotary pumps, and particularly to the class of pumps cmploying what is lm'own as an overshot rotor.

The objects of my invention are to create I y a maximum centrifugal efl ect of the water passing through the casing of the pump while at the same time creating a vacuum by rapidly expelling the same, and to subject the water to the action of the rotor causing said centrifugal and vacuum effects for as reat a distance as possible around the periphery of said rotor. This I accomplish by the means hereinafter fully set forth, and as particularly pointed out in. the claims.

In the drawings Figure 1 is a side view of my improved pump showing a portion of the casing broken away. 7

Fig. 2 is a transverse dotted line 2-2, Fig. 1.

Fig. 3 is a view of the inner side or interior of one section of the casing of the pump.

Fig. 4 is a similar view of the interior of the other section of the same.

Fig. 5 is an edge view of the rotor removed from its casing.

My invention comprises a casing and a section taken on 'rotor as the principal features. The casing consists of two sections, A and B, the former of which is saucer-shaped and has a circular rim portion that is substantially at right angles to the transverse web a thereof, and has its annular edges provided with outwardly projecting transverse flanges b. The center of web at of this section is provided with an axially projecting tubular boss 0, the inner end of which has a bushing d inserted therein in which the drive-shaft C of the pump is journaled. Between the outer end of boss 0 and bushing oZ suitable packing a is inserted around shaft O, which is compressed and held in place by a glandnut l).

n the inner end or extension of shaft C (which terminates before it reaches the transverse plane of flanges 7)) my improved rotor E is securely mounted. The construction of this rotor will be hereinafter more fully explained, for the present, suffice it to say that the boss f of this rotor practically corresponds in length to and surrounds the entire inner extension of the drive-shaft,

that the disk or circumferential web projecting from said boss that constitutes the body of the rotor is of a thickness corresponding to approximately three-tenths of the length of boss f and projects from its center of length and that the radii of its outer circumference is slightly less than threefourths of the radii of the inner circumference of the rim of section A.

The peripheral portion of the rotor is provided with a series of buckets the bottoms g of which start from a point on the periphery of the rotor midway between its sides and incline outward toward the shaft and terminate at a radii about three-fourths of that of the periphery of the rotor. The transverse web of section A is provided with an inwardly projecting annular flange F that extends as far as the adjacent side of the web of the rotor, but does not bear against the same sufliciently to create friction. At a. suitable point the rim of section A is provided with an inlet stub G and im; mediately next the same with an outletstub H, and these two stubs are separated by a partition I which is madeintegral with and projects from the transverse web. of said section A radially from flange F to the rim of said section. The portion of this partition alongside of the rotor projects laterally from the transverse web of section A only to the same extent as flange F until it reaches the periphery of the rotor, but from this point to the inner circumference of the rim of said section A it projects laterally to and terminates within a short distance of the transverse plane of the outer surfaces of the circumferential flanges b of the same.

The open side of section A is closed by sec tion B of the casing, which latter practically constitutes a circular head, the circumference of which corresponds to the circumference of flanges b of section A to which it is'secured by a series of screws h. Just within the inner circumference of the rim of section A, sectionB is depressed to form a rabbeted seat 3" for the annular flanged edges of section A, and to bring the inner side surface of said section B the same distance from the side of the rotor as the inner transverse surface of section A. This section B' is provided with an inwardly projecting annular flange k of the same diameter as annular flange F, which extends andterminates next the side of the rotor opposite to flange F, and this flange 70 has \a radially projecting portion K which corresponds in shape to the corresponding inner portion of partition I and terminates at the same radii as the periphery of the rotor; This projecting portion is also made integral with the inner surface ,of section B, and the outer wider portion of partition I projects past the periphery of the rotor and the end of projecting portion K to the inner transverse side of section B.

. As thus constructed, when the two sections of the casing are connected together by j the exit through stub a channel J is formed, is through stub G, and H. The bucket portion only of the rotor projects and revolves in this channel except where the rotor passes through partition I, the side edges of which latter are curved so as to permit the water to enter said channel and discharge therefrom with as little friction as possible. As hereinbefore stated, the peripheral portion of the rotor is provided with a series of buckets and the bottoms of these buckets are inclined and they are separated, one from the other, by a series of equi-distant partitions or bla'des L that extend radially screws h or otherwise, the entrance to -wh1ch and have their sides transverse to the sides of the web of the rotor.

It will'be apparent from scription and from the drawings of my in,- vention that, as only the bucket portion of the rotor travels in channel J and as the outer circumference of said rotor isless than half-the distance between the inner and outer k circumferences of th-=- .channel, the latter will, when revolved. at a high rate of speed, throw the water outward toward the sides of channel J, and toward the outer circum;

- ference of the same, and at the same time the partitions or,blades L of therotor will propel the water forward at a very high rate ,of speed and they will retain their purchase upon the body of water traversing channel J from the entrance thereof to the exit of the same for a distance corresponding nearly to the entire circumference of the casing, and their ability to do this constitutes a very eflicient rotary pump that creates a great vacuum and enables it to lift the water a considerable distance and expel it with great force.

I do not wish to be confined to' the exact proportions of the various elements of my invention, as hereinbefore specified, although they are practically correct, as stated, for these could be slightly changed without departing from the spirit of my invention.

' of the same nearer the foregoing de- What I claim as new is 2- 13' In a rotary pump, a rotor the marginal portion of the outer circumference of which is provided with a series of buckets the bottoms of which are substantially flat and incline from the periphery thereof to the side the center of the rotor and are separated by blades having flat transverse sides. a

2. In arotary pump, a rotor the marginal I portion of the outer circumference of which is provided on each side of the same with a series of buckets the bottoms of which are inclined substantially from the center of width of the periphery thereof to the sides thereof at points nearer the center of the rotor and are separated by equi-dista'nt blades havingsubstantially flat transverse sides;

3.-In a rotary pump, a casing having a passage extending c'rcumferentially from a suitable inlet .to' a suitable outlet located adjacent thereof and having'a circumferential slot in the annular transverse partition con-. stituting the inner circumference of the same, of a rotor the axis of which is concentric to the center from which said axis is i struck and which has an outer marginal portion which extends through said slot into said passage and is provided with a series of buckets therein each having a substantially flat bottom inclining from the periphery to the side thereof at a point adjacent said annular partition and separated by transverse blades.

4. In a rotary pump, a casing having a passage extending circumferentially from a suitable inlet to a suitable outlet located ad- 'acent thereof and having a circumferential slot in the annular transverse partition constituting the inner circumference of the same, of a rotor the axis ofwhich is concentric to the center from which said axis is struck and which has an outer marginal portion which extends said passage and is provided with a series of buckets therein each bucket on each side of the rotor having a substantially flat bottom inclining from the center of width of the periphery of said rotor to a point on the side thereof adjacent said transverse partition and separated by equi-distant trans- .verse blades.

5. In a rotary pump, a casing having a passage extending circumferenti'ally from a suitable inlet to a suitable outlet located adstruck and which has an outer marginal portion which extends through said slot into butless than half the depth of said passage and is provided with a series of buckets through said slot into.

essee? a therein, each bucket on each side of the rotor having a substantially flat bottom inclining from the center of width of the periphery of said rotor to a point on the side thereof adjacent said transverse rated by equi-distant transverse blades.

6. In a rotary pump, a casing consisting of two circular sections, one ofwhich has a cylindrical rim projecting from its transverse web, and an annular flange projecting from said web in the same direction as said rim and between the same and its axis and has a'suitable inlet opening in said rim and a discharge opening therein adjacent thereto but separated therefrom by a transverse partition, and the other section of which closes the open side of said first mentioned section and has an annular flange projecting sidewise toward and is the same diameter as the annular flange of the other section, in combination with a shaft journaled in suitable bearings in the center of said first-mentioned section, and a rotor securely mounted there-' on within said section and having its mar ginal portion extending between said annular flanges into the circumferential passage between said annular flanges and said rim and provided with a series of buckets therein each having a substantially flat bottom inclining from the periphery to the side thereof at a point adjacent said annular partition and separated by transverseblades.

7. In a rotary pump, a casing consisting of two circular sections, one of which has a cylindrical rim projectingfrom its transverse web, and an annular flange projecting from said web in the same direction as said rim and between the sameand its axis and has a suitable inlet opening in said rim and a discharge opening therein adjacent thereto but separated therefrom by a transverse partition, and the other section of which closesthe open side of said first-mentioned section and has an annular flange projecting sidewise toward and is the same diameter as the annular flange of the other section, in

combination with a shaft journaled in suitable hearings in the center of said first-men- 'thereon within partition and sepa tioned section,

said sectlon and having its and a rotor securely mounted A marginal portion extending between said annular flanges into the circumferential passage between said annular flanges and said run and provided with a series of buckets therein each bucket on each side .of the rotor having a substantially flat bottom inclining from the centertof width of the periphery of said rotor to a point on the side thereof adjacent said transverse partition and separated by equi-distant transverse blades.

8. In a rotary pump, a casing consisting of two circular sections, one of'which has a cylindrical rim projecting from its transverse web, and an annular flange projecting from said web in the same direction as said rim and between the same and its axis and has a suitable inlet opening in said rim and a discharge opening therein adjacent thereto but separated therefrom by a transverse partition, and the other section of which closes the openside of said first-mentioned section and has an annular flange projecting side wise toward and is the same diameter as the center of width of the periphery of said rotor to a point on the side thereof adjacent said transverse partition and separated by equi-distan't transverse blades.

In witness whereof I have hereunto set my hand this 30th day of October, 1915.

. ADOLPH WAHLE. Witnesses: t a I JoHN H. Sonnonnnn, HERMAN 'H. WAHLE. 

